Externet Posted October 16, 2014 Share Posted October 16, 2014 Pouring some ClNa on ice is a practice to melt ice. As is done on pavements. Pouring some ClNa on ice is a practice to lower the ice temperature and prevents melting of ice. As done on keeping fish mixed with ice for its transportation or storage. Well, it is one, the other or... both. Promotes melting; prevents melting ? Explain please ? Link to comment Share on other sites More sharing options...
Strange Posted October 16, 2014 Share Posted October 16, 2014 (edited) It lowers the freezing point. Which means that, on a pavement, it is no longer cold enough for ice to remain as ice. But in an insulated environment the ice will turn to water at a lower temperature. So the ice/water mixture will have a lower temperature. (When the ice melts, it absorbs heat from the surroundings.) Weird, huh? Edited October 16, 2014 by Strange Link to comment Share on other sites More sharing options...
John Cuthber Posted October 17, 2014 Share Posted October 17, 2014 Pouring some ClNa on ice is a practice to lower the ice temperature and prevents melting of ice. For a start, it's NaCl. Anyway, adding salt to ice causes the ice to melt; it doesn't prevent it. Link to comment Share on other sites More sharing options...
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